Home / 7,529.65-10,390.61-4,172.60

Finding the Fourth Proportional to 7,529.65, 10,390.61 and 4,172.60

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Solution

The fourth proportional to 7,529.65, 10,390.61 and 4,172.60 is: 5,758.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,529.65 : 10,390.61 = 4,172.60 : x
  2. Step 2: Convert to fraction form
    7,529.65/10,390.61 = 4,172.60/x
  3. Step 3: Cross multiply
    7,529.65x = 10,390.61 × 4,172.60
  4. Step 4: Simplify right side
    7,529.65x = 43,355,864.40
  5. Step 5: Solve for x
    x = 43,355,864.40/7,529.65
  6. Step 6: Final answer
    x = 5,758.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.